ZyXEL p-660hwp Manual Do Utilizador

Chapter 11 Firewall Configuration

P-660HWP-Dx User’s Guide

HTTP(TCP:80) 

Hyper Text Transfer Protocol - a client/server protocol for the world 

wide web.

HTTPS

HTTPS is a secured http session often used in e-commerce.

ICQ(UDP:4000)

This is a popular Internet chat program.

IPSEC_TRANSPORT/

TUNNEL(AH:0)

The IPSEC AH (Authentication Header) tunneling protocol uses this 

service.

IPSEC_TUNNEL(ESP:0)

The IPSEC ESP (Encapsulation Security Protocol) tunneling protocol 

uses this service.

IRC(TCP/UDP:6667)

This is another popular Internet chat program.

MSN Messenger(TCP:1863)

Microsoft Networks’ messenger service uses this protocol. 

MULTICAST(IGMP:0)

Internet Group Multicast Protocol is used when sending packets to a 

specific group of hosts.

NEWS(TCP:144) 

A protocol for news groups.

NFS(UDP:2049) 

Network File System - NFS is a client/server distributed file service that 

provides transparent file-sharing for network environments.

NNTP(TCP:119) 

Network News Transport Protocol is the delivery mechanism for the 

USENET newsgroup service.

PING(ICMP:0)

Packet INternet Groper is a protocol that sends out ICMP echo 

requests to test whether or not a remote host is reachable.

POP3(TCP:110)

Post Office Protocol version 3 lets a client computer get e-mail from a 

POP3 server through a temporary connection (TCP/IP or other).

PPTP(TCP:1723)

Point-to-Point Tunneling Protocol enables secure transfer of data over 

public networks. This is the control channel.

PPTP_TUNNEL(GRE:0)

Point-to-Point Tunneling Protocol enables secure transfer of data over 

public networks. This is the data channel.

RCMD(TCP:512) 

Remote Command Service.

REAL_AUDIO(TCP:7070) 

A streaming audio service that enables real time sound over the web.

REXEC(TCP:514) 

Remote Execution Daemon.

RLOGIN(TCP:513) 

Remote Login.

RTELNET(TCP:107) 

Remote Telnet.

RTSP(TCP/UDP:554)

The Real Time Streaming (media control) Protocol (RTSP) is a remote 

control for multimedia on the Internet. 

SFTP(TCP:115) 

Simple File Transfer Protocol.

SMTP(TCP:25) 

Simple Mail Transfer Protocol is the message-exchange standard for 

the Internet. SMTP enables you to move messages from one e-mail 

server to another.

SNMP(TCP/UDP:161) 

Simple Network Management Program.

SNMP-TRAPS (TCP/

UDP:162) 

Traps for use with the SNMP (RFC:1215).

SQL-NET(TCP:1521) 

Structured Query Language is an interface to access data on many 

different types of database systems, including mainframes, midrange 

systems, UNIX systems and network servers.

SSDP(UDP:1900)

Simole Service Discovery Protocol (SSDP) is a discovery service 

searching for Universal Plug and Play devices on your home network 

or upstream Internet gateways using DUDP port 1900. 

Table 64   Predefined Services (continued)